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NUST NET - Practice Test - Physics - Electromagnetism - Quiz 5

Practice 10 high yield MCQs on Physics from Chapter Electromagnetism for Practice Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 5 of the series.

41. What is the force on a 0.5 m wire carrying 2 A in a 0.4 T perpendicular field?



42. What is the magnetic field at the centre of a 50-turn coil (R=0.1 m, I=2 A)?



43. What is the maximum EMF induced in a 100-turn coil (A=0.02 m²) rotating at 50 Hz in 0.5 T?



44. What is the induced EMF in a 0.5 H inductor when current changes from 2 A to 5 A in 0.1 s?



45. A transformer (Np=2000, Ns=100) connected to 220 V supplies a 10 Ω load. What is the primary current?



46. What is the magnitude of induced EMF in a 50-turn coil if flux changes at 0.1 Wb/s?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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